body{
    padding: 0;
    margin: 0;
    font-family: 'microsoft yahei','Helvetica',simhei,simsun,sans-serif;
    background-color: #f7f7f7;
}

a{
    text-decoration: none;
}

figcaption{
    font-size: 24px;
    text-align: center;
    margin: 20px;
}

.player{
    width: 720px;
    height:360px;
    margin: 0 auto;
    border-radius: 4px;
    background-color: #000 url() center/300px no-repeat;
    position: relative;
    text-align: center;
}

video{
    display: none;
    height: 100%;
    margin: 0 auto;
}

video::-webkit-media-controls{
    display: none !important;
}

.controls{
    width:700px;
    height:40px;
    background-color: rgba(0,0,0,0.2);
    border-radius: 4px;
    position: absolute;
    left: 50%;
    margin-left: -350px;
    bottom: 5px;
    z-index: 100000000000;
    opacity: 1;
}

.player:hover .controls{
    opacity: 1;
}

.controls .switch{
    display: block;
    width: 20px;
    height: 20px;
    font-size: 20px;
    color: #FFF;
    position: absolute;
    top: 11px;
    left: 11px;
}

.controls .expand{
    display: block;
    width: 20px;
    height: 20px;
    font-size: 20px;
    color: #FFF;
    position: absolute;
    right: 11px;
    top: 11px;
}

.progress{
    width: 430px;
    height: 10px;
    border-radius: 3px;
    overflow: hidden;
    background-color: #555;
    cursor: pointer;
    position: absolute;
    top: 16px;
    left: 45px;
}

.progress .loaded{
    width: 0;
    height: 10%;
    background-color: #999;
}

.progress .line{
    width: 0;
    height: 100%;
    background-color: #FFF;
    position: absolute;
    top: 0;
    left: 0;
}

.progress .bar{
    width: 100%;
    height: 100%;
    opacity: 0;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 1;
}

.timer{
    height: 20px;
    line-height: 20px;
    position: absolute;
    left: 490px;
    top: 11px;
    color: #FFF;
    font-size: 14px;
}